Sentences with phrase «unusual types of crystals»

While previously thought to be simply unusual types of crystals, the team's study revealed that the tubules (pictured) may be biological in origin, they reported online last week in Geology.

Not exact matches

For example, it's unusual to find an atheist that believes in ghosts or any type of paranormal «phenomena», Sasquatch, visitation by aliens, witchcraft, crystal healing, homeopathy, etc..

The huge size of these crystals implies a type of magma called pegmatite, a juicy water - rich melt that provides unusual conditions, allowing minerals to grow to enormous sizes.